static VALUE rd_die_name(VALUE self) { rd_die_t *die = GetDie(self); char *name; Dwarf_Error err; if (chkerr2(dwarf_diename(die->die, &name, &err), &err)) { return rb_enc_str_new_cstr(name, rb_usascii_encoding()); } else { return Qnil; } }
static VALUE syserr_initialize(int argc, VALUE *argv, VALUE self) { #if !defined(_WIN32) char *strerror(); #endif const char *err; VALUE mesg, error, func, errmsg; VALUE klass = rb_obj_class(self); if (klass == rb_eSystemCallError) { st_data_t data = (st_data_t)klass; rb_scan_args(argc, argv, "12", &mesg, &error, &func); if (argc == 1 && FIXNUM_P(mesg)) { error = mesg; mesg = Qnil; } if (!NIL_P(error) && st_lookup(syserr_tbl, NUM2LONG(error), &data)) { klass = (VALUE)data; /* change class */ if (!RB_TYPE_P(self, T_OBJECT)) { /* insurance to avoid type crash */ rb_raise(rb_eTypeError, "invalid instance type"); } RBASIC_SET_CLASS(self, klass); } } else { rb_scan_args(argc, argv, "02", &mesg, &func); error = rb_const_get(klass, rb_intern("Errno")); } if (!NIL_P(error)) err = strerror(NUM2INT(error)); else err = "unknown error"; errmsg = rb_enc_str_new_cstr(err, rb_locale_encoding()); if (!NIL_P(mesg)) { VALUE str = StringValue(mesg); if (!NIL_P(func)) rb_str_catf(errmsg, " @ %"PRIsVALUE, func); rb_str_catf(errmsg, " - %"PRIsVALUE, str); OBJ_INFECT(errmsg, mesg); } mesg = errmsg; rb_call_super(1, &mesg); rb_iv_set(self, "errno", error); return self; }